Finding the Fourth Proportional to 187,860.40, 259,259.40 and 102,977.68
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Solution
The fourth proportional to 187,860.40, 259,259.40 and 102,977.68 is: 142,115.80
Step by Step Solution
- Step 1: Write the proportion equation
187,860.40 : 259,259.40 = 102,977.68 : x - Step 2: Convert to fraction form
187,860.40/259,259.40 = 102,977.68/x - Step 3: Cross multiply
187,860.40x = 259,259.40 × 102,977.68 - Step 4: Simplify right side
187,860.40x = 26,697,931,530.19 - Step 5: Solve for x
x = 26,697,931,530.19/187,860.40 - Step 6: Final answer
x = 142,115.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.